Akashic Guitar effects circuit lookup
HARMONICSBRIGHTLOW

125B · 3 knobs

PedalPCB· PCB568

Skeptical Buffer

Based on the 29 Pedals EUNA· 2 other boards clone it

Category
Utility· Buffers / Line Drivers
Controls
Harmonics · Bright · Low
Price
$12.00in stock
Tags
125B, Signal Schmalzigrrs
Buy the PCB at PedalPCB Build document4/24/24

From the vendor

Controls

• Harmonics (Toggle switch)

• Bright (Toggle switch)

• Low (Toggle switch)

Details

• Runs on standard 9VDC pedal power

• Designed for a 125B enclosure with top-mounted jacks

The company, product and service names used in this web site are for comparative purposes only. All trademarks and registered trademarks are the property of their respective owners. This product is not manufactured or distributed by 29 Pedals, maker of the 29 Pedals EUNA.

PedalPCB is in no way affiliated with 29 Pedals.

Schematic

The schematic is in the vendor's build document, page 4. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 42 rows

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RefValueNormalizedTypeNotes
Resistors 15
R13M33.3MResistor, 1/4W
R211K11kResistor, 1/4W
R31K51.5kResistor, 1/4W
R4470R470Resistor, 1/4W
R53M33.3MResistor, 1/4W
R622K22kResistor, 1/4W
R7220K220kResistor, 1/4W
R81K51.5kResistor, 1/4W
R9100K100kResistor, 1/4W
R101K51.5kResistor, 1/4W
R111K51.5kResistor, 1/4W
R12220K220kResistor, 1/4W
R1310R10Resistor, 1/4W
R143M33.3MResistor, 1/4W
CLR4K74.7kResistor, 1/4W* LED current limiting resistor
Capacitors 17
C13p3pCeramic capacitor
C21u1uFilm capacitor, 7.2 x 5.0mm
C31u1uTantalum capacitor
C4100n100nFilm capacitor, 7.2 x 2.5mm
C5220n220nFilm capacitor, 7.2 x 5.0mm
C610u10uTantalum capacitor
C71u1uFilm capacitor, 7.2 x 5.0mm
C81u1uTantalum capacitor
C91u1uFilm capacitor, 7.2 x 5.0mm
C1047u47uTantalum capacitor
C100100u100uElectrolytic capacitor, 5mm25V minimum
C10110u10uElectrolytic capacitor, 5mm25V minimum
C10210u10uElectrolytic capacitor, 5mm25V minimum
C10310u10uElectrolytic capacitor, 5mm25V minimum
C10410u10uElectrolytic capacitor, 5mm25V minimum
C10510u10uElectrolytic capacitor, 5mm25V minimum
C10610u10uElectrolytic capacitor, 5mm25V minimum
Diodes 5
D1001N58171N5817Schottky diode, DO-41
D1011N58171N5817Schottky diode, DO-41
D1021N58171N5817Schottky diode, DO-41
D1031N58171N5817Schottky diode, DO-41
D1041N58171N5817Schottky diode, DO-41
ICs 2
IC1TL072TL072Dual op-amp, DIP8
IC100TC1044SCPATC1044SCPACharge pump IC, DIP8
Switches 3
SW_BON/ONON/ONToggle switch, SPDT2-position (ON/ON)
SW_HON/ONON/ONToggle switch, SPDT2-position (ON/ON)
SW_LON/ONON/ONToggle switch, SPDT2-position (ON/ON)

Other boards based on the 29 Pedals EUNA